The CPS Adjustable Piano Stool is perfect for low profile seating for students & teachers. Top diameter is 14 . It weighs about 15 pounds. Its height can be adjusted from 16 1/2 to 23 1/2 . It is made of solid hard wood. The seat is covered with well-padded leatherette. No assembly required. Available in ebony (black) color with high gloss finish. This product carries a one-year limited warranty against defects in materials and workmanship.